I’m working on a PHP function called cascade that accepts a string and an integer representing the gap between words. The function should return the text arranged in a cascading representation.

function cascade(string $s, int $gap): string {
    return "";
}

For example, if the function is called like this:

cascade("The codings bug", 2);

It should return:

T__c__b___
_h__o__u__
__e__d__g_
______i___
_______n__
________g_
_________s

Another example:

cascade("The coding bug", 3);

Should return:

T___c___b__
_h___o___u_
__e___d___g
_______i___
________n__
_________g_

Could someone help me figure out how to implement the cascade function to meet these requirements?

Thank you in advance!

I tried writing the cascade function to handle the string and gap inputs. My expectation was to generate a cascading output where each character in the string appears on a new line with increasing spaces (based on the gap) before each character. However, my current function returns an empty string, and I’m not sure how to implement the logic to achieve the desired cascading effect.

What Actually Happened:

The function currently does nothing and simply returns an empty string. I need help to correctly implement the function to pass all the provided test cases.

Could someone help me figure out how to implement the cascade function to meet these requirements?